CVE-2014-1776
Confirmed PUBLISHEDUse-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."
- CVE Published
- Apr 27, 2014
- Exploitation Reported
- Jan 28, 2022
- CVSS
- 9.8 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
n/a
|
n/a |
Affected |
CVE References
- MS14-021 docs.microsoft.com · Vendor Advisory https://docs.microsoft.com/en-us/security-updates/securitybulletins/2...
- 57908 secunia.com · Third-Party Advisory http://secunia.com/advisories/57908
- VU#222929 kb.cert.org · Third-Party Advisory http://www.kb.cert.org/vuls/id/222929
- 1030154 securitytracker.com · VDB Entry http://securitytracker.com/id?1030154
- 106311 osvdb.org · VDB Entry http://www.osvdb.org/106311
Show 5 more references
- 67075 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/67075
- blogs.technet.com/b/srd/archive/2014/04/30/protection-strategi... blogs.technet.com · CVE Record http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategi...
- signalsec.com/cve-2014-1776-ie-0day-analysis signalsec.com · CVE Record http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/
- fireeye.com/blog/uncategorized/2014/04/new-zero-day-expl... fireeye.com · CVE Record http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploi...
- technet.microsoft.com/library/security/2963983 technet.microsoft.com · CVE Record https://technet.microsoft.com/library/security/2963983
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-01-28 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
Exploitation Status
Exploited in the wild
Recorded 2022-01-28 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Use After Free
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
10:00 UTC about 12 years ago10:00 UTC · about 12 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 12 years ago00:00 UTC · over 12 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2014-1776
{
"cve_id": "CVE-2014-1776",
"title": "Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allo...",
"affected_vendor": "Microsoft",
"affected_product": "Internet Explorer",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}